Preheat oven to 350°F, Line a 15x10-inch jelly roll pan or a 12x17-inch cookie sheet with foil and spray with non-stick spray, Lay a flat layer of crackers out on the foil, Melt the sugar and butter until a boil is reached, Reduce the heat and simmer, uncovered, for 5-6 minutes or until mixture is thickened and sugar is completely dissolved, Pour this mixture over the crackers and spread to coat evenly, Bake for 8-10 minutes, or until the toffee becomes bubbly, After removing the pan from the oven, let it sit for 3-5 minutes, Sprinkle on the chocolate chips, let them soften and melt, and then spread them into an even layer,______,) Let cool and, if desired for expediting purposes, refrigerate until hardened, Break into pieces the size of your choice, I personally prefer a hand-sized chunk,